Contents

Background

The Assassin who Wanders the Night

A young boy feared from those who know him as the "Assassin". He appears before certain power users, challenging them to duels, but no one knows why. Or, for that matter, who he is. However, the moment he heard the name, "Princess of the Night Blade", his attitude changed. His emotionless face was no longer so. Since that day, he wanders the town, searching for the princess, not on anyone's orders.[3]

Information

Seth is a 1st year student in the same high-school as Hyde. To some he's mainly known as the "Assassin" (暗殺者).

Appearance

Seth is a teenager with grey eyes and short black hair, although about one-fourth of it is white on the front of his left side. He wears a high-collared double-breasted black coat with a tattered end sticking out behind his right leg, blue pants and black shoes.

Personality

Seth is an extremely serious individual and never shows any emotion beyond stoicism. Although his cold attitude may come off as insensitive, he is greatly burdened by the mistakes of his ancestor and feels that if he fulfills Linne's wish for death, he can redeem his family name and free himself of the past. In Yuzuriha's story, her optimistic way of life despite her family's history briefly causes Seth to question his path and his individuality.

Seth does attend school and has above average grades. He's bad at communicating and tries to avoid contact with his classmates in order to keep them from "getting involved"[4]. His presence is rarely noted in the classroom and Seth pretty much free to come and go as he pleases. He lives alone and it skilled with all the housework as he has been helping his family since he was young[4].

Story

Years ago people within the Night Blade started to think that people should be allowed to do whatever they want to do with their abilities. This resulted a rebellion and internal fighting within the Night Blade - Seth's ancestor was one of these rebels.

Seth has been trying to fix the mistakes Night Blade made in the past, which has led him to lead an aimless existence cleaning up after himself and killing off whatever is within the confines of both his power and his contract. He's aiming to claim the Indulgence of Insulation and remove the "curse" placed on Linne and Kuon using that sword. This would naturally put him at conflict with Hyde due to the weapon being in his possession.

Abilities

Seth's ability is the "EXS of Excavation" (穿鎖のEXS):Kerykeion(ケーリュケイオン). It allows him to create "chains" that pierce the opponent's flow of EXS and temporary seal their abilities[4]. It is an extremely rare ability. It's effect could directly be applied to a weapon, but Seth unfortunately lacks the skill to harness his ability in this way. Instead, Seth developed his whole fighting style around the way in which it's easiest for him to use his ability[4]. That's how he ended up with his current style of creating small balls that shoot the "chains" in the midst of Seth's high-speed sword attacks.

Seth was entrusted with the Twin Swords: Eliminator(双剣・エリミネーター) from Kuon as a part of his deal with Chaos. The other name of the blades is the Indulgence of Elimination(封滅の免罪符). Their relation to Hyde's sword with a similar name haven't been explained yet, but they are told to have to the opposite power to that of Hyde's sword. Before getting the Indulgence Weapon, Seth is told to have had expertise in a normal pair of daggers during his time of assassinating.

So far, Seth has displayed abilities in moving within the shadows along with basic stealth skills, and is able control a small level of darkness in the form of either creating a mote that fires a stunning arrow or an afterimage. Most of the time he focuses on his agility to be able to cleanly cut down his target with finesse and speed.

Musical Theme

Introduction Text

He wanders. Bound by the will and governing of an ancient family, but his emotions tremor.
The promise he made with a young girl shackles him in rusty chains he strives to sever. The
Night becomes a labyrinth, impeding his progress. Will he ever find the beacon he seeks?

He wanders -- Bound by the will and governing of an ancient family, but his emotions tremor.
The promise he made with a young girl shackles him, in rusty chains he strives to sever. The
Night becomes a labyrinth, impeding his progress. Will he ever find the beacon he seeks?

He strays. The whole family's rule and onself's will. It sways in the interval.
The promise with a girl ties. The least recently rusty chain hauled in and stopped.
The promise with a boy severs it. The grey wedge dug in compensation.
It turns into the labyrinth which confuses him a deep night. Is the lamplight to greet visible?

He had gone astray. The statute of the family and his own will. He sways in between.
The promise with the girl connects. Drawing the old rusty chain.
The promise with the boy is broken. The dull grey wedge penetrates for the compensation.
Deep nights turn into the labyrinth that deludes him. Will he see the light of acceptance.

Movelists

UNDER NIGHT IN-BIRTH

Name

Command

Unique Attacks

Unique Attack特殊技

←← > ↓

Rapid Descent急降下

Midair ↓↓ or ↓ + A+B

→ Additional Input追加入力

→ + A or B or C

Aerial Backdash空中バックダッシュ

Midair ←← or ← + A+B

Unique Attack特殊技

↘ + B

Unique Attack特殊技

→ + C

Unique Attack特殊技

↘ + C

Unique Attack特殊技

Midair ↓ + C

Unique Attack特殊技

Midair → + C

Unique Attack特殊技

C > C

Force Function

Geometry of Abyss Raid淵侵のジオメトリー

Simultaneously B + C

Special Attacks

Segment of Stitch Binding縫縛のセグメント

↓↘→ + A or B or C*Air OK*EX Able

Vengeance of Twin Hooks双鈎のヴェンジェンス

→↓↘ + A or B or C*EX Able

Confusion of Vanishment消失のコンフュージョン

↓↙← + A or B or C

→ Additional Attack 1追加派生技1

A or B or C Near the Opponent

→ Additional Attack 2追加派生技2

↑ + A or B or C Near the Opponent

Penetrate of Drill Passing穿通のペネトレイト

Midair ↓↙← + A or B or C*EX Able

Convict of Sinful Blame罪咎のコンビクト

→↘↓↙←→ + A or B or C*EX Able

Infinite Worth (Consumes 200% EXS)

Nefarious of Linked Chains連鎖のネファリウス

←↙↓↘→ + D

Infinite Worth EXS (Consumes 200% EXS)

Distant of Boundary境界のディスタント

A · B · C · D simultaneouslyUsable when below 30% health

BlazBlue: Cross Tag Battle

Name

Command

Smart Combos

Smart Combo 1スマートコンボ1

A · A · A · A

Smart Combo 2スマートコンボ2

B · B · B · B

Smart Combo 3スマートコンボ3

Midair A · A

Special Attack

Special Attack 1特殊技1

Press ↓ during ←←

Special Attack 1特殊技1

Press → during ←←

Reversal Action

Acute Ambush邀撃のアキュート

Simultaneously A + D

Skills

Captive Segment縫縛のセグメント

↓↘→ + A or B*Air OK

Dual Piercing Vengeance双鈎のヴェンジェンス

↓↙← + A or B

Piercing Penetration穿通のペネトレイト

Midair ↓↙← + A or B

→ Follow-up Attack追加攻撃

A or B or C during A-version of Piercing Penetration

Extra Skills

EX Captive SegmentEX縫縛のセグメント

↓↘→ + C*Air OK*Consumes Skill Gauge by 1

EX Dual Piercing VengeanceEX双鈎のヴェンジェンス

↓↙← + C*Consumes Skill Gauge by 1

EX Piercing PenetrationEX穿通のペネトレイト

Midair ↓↙← + C*Consumes Skill Gauge by 1

Distortion Skill

Chained Nefarity連鎖のネファリウス

↓↘→ + B · C simultaneously*Consumes Skill Gauge by 2

Last Rite Execution誅罪のエクセキュート

↓↙← + B · C simultaneously*Consumes Skill Gauge by 2

Distortion Skill Duo

Chained Nefarity連鎖のネファリウス

P during the main character's Distortion Skill*Consumes Skill Gauge by 2

Astral Heat (Consumes Skill Gauge by 9 via Level 4 Resonance Blaze)

Distant Frontier境界のディスタント

↓↓↓ + B · C simultaneouslyUsable with only one partner remaining on both sides

Creation & Development

Seth's design originally started from scrapped designs of Hyde. The producer Narita was originally against the addition of Seth as he felt like the game already had enough gloomy and dark characters. Yoshihara personally liked Seth's design and was determined to get him into the game. He polished the design and promised the producer that after Seth he'd draw as many cheerful characters as Narita wanted[5].

Yoshihara was careful to add colors like blue and silver that made Seth seem more like Hyde's rival. The key of Seth's design was to visualize "Assassin" and "Night Blade". His design has a lot of sharpness. In the mook interview, Yoshihara reflects that he wanted to brush-up the details of Seth's bottom half more as it felt a bit too simple[6].

Trivia

The term Kerykeion is an ancient winged scepter with two serpents coiling around the shaft, used as a symbol of medical profession and modeled on Hermes' staff.

Seth's name is written in katakana as "Seto" instead of the typical "Sesu". It is possibly as a reference to Set/Seth, the god of the desert, storms, disorder and violence in the Egyptian mythology.

The futon he uses to wrap Linne with in his Arcade Mode is apparently the one he sleeps in.